DJVPVPR1X2X2.5计算机专用电缆格连山服务到位天联牌ZR-KYJVP阻燃控制电缆欢欣

DJVPVPR1X2X2.5计算机专用电缆格连山服务到位天联牌ZR-KYJVP阻燃控制电缆欢欣

　　 IA-DJVVP3R IA-DJYVP3R IA-DJYJVP3R 本安型、铝塑复合膜总屏蔽软结构 。IA-DJVPVPR IA-DJYPVPR IA-DJYJPVPR 本安型、编织分对屏蔽、总屏蔽（铜丝或镀锡丝）软结构。



Solid insulated unfilled cable is a kind of internal communication cable designed for the urban communication network. Transmission of audio 1 50k H Z and below analog signals and 2048Kbit/S and below digital signals. Under certain conditions, it can also be used to transmit digital signals over 2048Kbit/S. In a 30 ℃ ~ + 60 ℃ environment conditions, the cable to ensure long-term, reliable running. Structure.

　　KVV22铜芯聚氯乙烯绝缘聚氯乙烯护套钢带铠装控制电缆。KVVR铜芯聚氯乙烯绝缘聚氯乙烯护套控制软电缆。KVVRP铜芯聚氯乙烯绝缘聚氯乙烯护套编织屏蔽控制软电缆。KVVP-22铜芯聚氯乙烯绝缘聚氯乙烯护套铜丝编织屏蔽钢带铠装KVVP2-22铜芯聚氯乙烯绝缘聚氯乙烯护套铜带屏蔽钢带铠装。

　　ZR-YJV22ZR-YJLV22ZR-YJV23ZR-YJLV23交联聚乙烯绝缘阻燃聚氯乙烯/聚乙烯护套钢带铠装动力电缆敷设在室内、隧道内直埋土壤，电缆能承受机械外力作用。2、可根据用户要求，生产0.6/1KV圆形导体结构或扇形导体结构的各类五芯电缆。



Electronic computer shielded cable, choose high pressure polyethylene insulation, small dielectric constant use to ground, and the screen, the total screen (or three quad twisted, group screening, group screen a total screen), such as structure, with a small dielectric loss, transmit ability strong, good anti-jamming performance characteristics, can be reliably transmitted weak the analog signal or digital signal, can be widely used in electricity, metallurgy, petroleum, chemical, textile and other departments of detection and control computer system or automated devices, as well as general industrial computer. High-temperature F46 computer cable belong to one of the special cable, electronic computer system is in urgent need of modern industrial construction of form a complete set of products, it is widely used in energy industry, metallurgical industry and petrochemical industry and other industrial enterprises and scientific research department of the electronic computer, instruments and meters, all kinds of automatic detection e, and other information processing e signalling and the control system. Application: it is installed in indoor, cable trench, pipe and other places where high temperature resistance electrostatic shielding is required

《供配电系统设计规范》GB50052-2009第7.0.1条“带电导体系统的型式，易采用单相二线制、两相三线制、三相三线制和三相四线制。低压配电系统接地型式，可采用TN系统、TT系统、IT系统。”三相四线制，三相是指从三相变压器二次侧接引的A相、B相和C相三个相线；四线是指三相变压器二次侧接引的A相、B相和C相三个相线和一个中性线，目前10kV配电变压器采用Dyn11联结组别的变压器，变压器二次侧为星形接法，考虑到有单相负荷，从其中性点引出一个线为中性线，三个相线加上一个中性线即为四线。

Armoured communication cable armoring cable type: HYA53, HYAT53, HYA23 HYAT23, HYV22, HYA22 (rat, buried) armoring communication cable USES: armoured communication cable mechanical protective layer can be appended to the structure of the cable, with the mechanical strength of the cable, antierosion capability, is vulnerable to mechanical and designed and vulnerable to erosion area telephone cable. Any kind of laying can be adopted, which is more suitable for direct buried laying in rock area. Armored communication cable structure: 1. Basic cable: any filled and unfilled cable with single sheath or double sheath structure. 2. Armored communication cable mechanical protection layer: type 53 adopts 0.15mm thick corrugated steel belt, which is longitudinal wrapped on the basic cable and overlapped on both sides. The surface of the steel belt is coated with plastic to prevent corrosion and water intrusion. The type 23,22 has similar performance with double steel band wrapping. 3. Armored communication cable sheath: black high-molecular weight low-density polyurethane or polyurethane sheath. Sheath thickness may depend on the basic cable outer diameter. 5. The marking contents of armored communication cables include: wire diameter, number of wire pairs, cable model, length, manufacturer name and year of manufacture. 6. Armored communication cable electrical characteristics: the cable meets all the electrical re of the basic cable. 6. Cable length: mechanically protected cable is made according to the length of the corresponding basic cable

　　2、成品电缆经受交流50Hz、3kV/5min电压试验不击穿。它的特性：1、交流额定电压：U0/U450/750V。2、电缆导体长期允许高工作温度：180℃。3、低环境温度：固定敷设-60℃，非固定敷设-20℃。
　　现在将一些错误的观念作出一些澄清。1.485信号线可以和强电电源线一同走线。在实际施工当中，由于走线都是通过管线走的，施工方有的时候为了图方便，直接将485信号线和电源线绑在一起，由于强电具有强烈的电磁信号对弱电进行干扰，从而导致485信号不稳定，导致通信不稳定。

　　说简单点，BV线就是普通的铜芯电线，就是接500V以下的电源用的．给其它设备提供电源的。BV线的主要型号从1.5平方到240平方，其中BV2.5是家庭装饰装修布线长使用的型号。其中，阻燃BV线绝缘料加有阻燃剂，离开明火不自燃。



　　MHYBV1X(2～7)X(0.75-1.5)mm2。MHYAV（HUYAV）矿用聚乙烯绝缘铝/塑复合带屏蔽阻燃聚氯乙烯护套通信电缆用于较潮湿的斜井和平巷作通信线。MHYA32（HUYA32）矿用聚乙烯绝缘铝/塑复合带屏蔽钢丝铠装阻燃聚氯乙烯护套通信电缆用于煤矿竖井或斜井作通信线。

　　2 电缆的使用特性、分类与命名2.1 使用特性2.1.1电缆额定工作电压：450/750V、600/1000V。2.1.2电缆导体的长期工作温度：70℃。2.1.3电缆敷设时环境温度应不低于0℃。2.1.4电缆小弯曲半径：非铠装电缆：阻燃型为电缆外径的6倍，耐火型为电缆外径的12倍；铠装型电缆为电缆外径的20倍。

中间继电器和接触器的差异继电器之所以冠上了“中间”两个字，可以理解成它并不是用来实现终控制的，而是起到一个中间环节的转接作用，“继”就是继接状态的意思了。所以中间继电器并没有所谓的主触点和辅助触点的说法，它的目标是让小电流变成稍微大一点的电流，甚至还继续保留原来的小电流，而只利用了触点的隔离功能。从这个角度而言，继电器会设计很多组常开和常闭触点，触点越多，能用来联锁其他继电器或者接触器的可能性会越高，逻辑的花样会越复杂，越能满足工业控制需求。

　　 五、规格范围型 号线 芯 对 数标 称 截 面（mm2） DJYPV DJYP2V DJYP3V DJYPVR DJYP2VR DJYP3VR DJYVPDJYVP2DJYVP3DJYVPRDJYVP2RDJYVP3RDJYPVPDJYP2VP2DJYP3VP3DJ。



　　DJYVPDJYPVDJYPVP聚乙烯绝缘总屏蔽聚氯乙烯护套电子计算机用电缆聚乙烯绝缘组屏蔽聚氯乙烯护套电子计算机用电缆聚乙烯绝缘组屏蔽总屏蔽聚氯乙烯护套电子计算机用电缆1、固定敷设在室内、电缆沟或管道内。

　　1、额定电压450/750v 2、电缆导体的长度允许工作温度为70摄氏度 3、电缆的敷设温度应不低于0摄氏度，推荐的允许弯曲半径； 4、无铠装层的电缆，应不小于电缆外径的6倍 5、有铠装或铜带屏蔽结构的电缆，应不小于电缆外径的12倍。

　　DJYDP2YD(R)低烟无卤阻燃聚烯烃绝缘和护套铜带绕包分屏计算机用屏蔽(软)电缆。DJYDP2YD(R)P2低烟无卤阻燃聚烯烃绝缘和护套铜带绕包分屏总屏计算机用屏蔽(软)电缆。DJYDYD(R)P3低烟无卤阻燃聚烯烃绝缘和护套铝塑复合带绕包总屏计算机用屏蔽(软)电缆。